Technical Specifications and Current Capacity – SWA Cable 5 Core

The helpful Table below displays the Technical Specifications and Current Carrying Capacity of 5 core armoured cable:-

This cable is most suited to 3 phase neutral and earth installations and provides a dedicated earth cable to use as well as the steel wire armouring of the cable.

How to size your 5 core SWA cable

Electrical engineers and electricians can use the below the formula to work the volt drop on a 5 core armoured cable.

Voltage Drop = (mV/A/m) x Ib x L / 1000.

(mV/A/m): To find the value for (mV/A/m) use the above tables
Ib: Design current in Amps which is watts divided by voltage
L: length of the circuit in metres

Five Core armoured cable Specifications
Nominal Cross Sectional Area (mm2)	1.5	2.5	4	6	10	16	25	35
Approx. Overall Diameter (mm)	13.0	14.7	16.9	18.6	21.2	25.4	30.2	33.2
Approx. Diameter Under Armour (mm)	8.9	10.6	12.1	13.6	16.2	19.4	24.2	27.0
Nominal Diameter of Armour Wires (mm)	0.9	0.9	1.25	1.25	1.25	1.6	1.6	1.6
Approx. Cable Weight (Kg, km)	360	460	610	840	1090	1700	2300	2830
Maximum Conductor Resistance @ 20 Degrees C	12.1	7.41	4.61	3.08	1.83	1.15	0.727	0.524
Conductor Short circuit rating (1 Sec) kA	0.20	0.35	0.57	0.86	1.4	2.2	3.6	5.0
Three Phase AC Clipped Direct (Amps)	23	31	42	53	73	94	124	154
Three Phase Free Air (Amps)	25	33	44	56	78	99	131	162
Volt Drop Three Phase AC (mV/A/m)	27	16	10	6.8	40	2.5	1.65	1.15

Please follow this helpful link if you’d like to view our range of SWA Cable 5 Core,

If you cannot find the SWA Cable 5 Core that you require, please feel free to call our Sales Team on 01244 288138 for further information and assistance.
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